Abstract
The influence of stress-induced-martensitic transformation on the serrated flow behavior associated with dynamic strain aging was investigated. The-martensitic transformation was controlled by changing the deformation temperature and adding Si to Fe-17Mn-xSi-0.3C alloys. The addition of Si promoted the-martensitic transformation, and suppressed the slip deformation due to solution hardening. The initiation of serrations around room temperature was delayed by the promotion of-martensitic transformation which initiated plastic deformation. The critical stress for the occurrence of serrations and the critical stress for the occurrence of slip deformation were found to have a linear relationship.
| Original language | English |
|---|---|
| Pages (from-to) | 3051-3063 |
| Number of pages | 13 |
| Journal | Philosophical Magazine |
| Volume | 92 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 2012 Aug 21 |
Keywords
- austenitic steel
- dynamic strain aging
- Fe-based alloy
- martensitic transformation
- planar defect
- solution hardening
- stress-strain measurement
- tensile testing